77338916 has 12 divisors (see below), whose sum is σ = 143304588. Its totient is φ = 36394752.

The previous prime is 77338913. The next prime is 77338927. The reversal of 77338916 is 61983377.

It can be written as a sum of positive squares in 2 ways, for example, as 66422500 + 10916416 = 8150^2 + 3304^2 .

It is not an unprimeable number, because it can be changed into a prime (77338913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568601 + ... + 568736.

It is an arithmetic number, because the mean of its divisors is an integer number (11942049).

Almost surely, 2^77338916 is an apocalyptic number.

It is an amenable number.

77338916 is a deficient number, since it is larger than the sum of its proper divisors (65965672).

77338916 is a wasteful number, since it uses less digits than its factorization.

77338916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137358 (or 1137356 counting only the distinct ones).

The product of its digits is 190512, while the sum is 44.

The square root of 77338916 is about 8794.2547154378. The cubic root of 77338916 is about 426.0553536629.

The spelling of 77338916 in words is "seventy-seven million, three hundred thirty-eight thousand, nine hundred sixteen".